source: MondoRescue/branches/2.2.5/mondo/src/common/libmondo-tools.c@ 1668

Last change on this file since 1668 was 1666, checked in by Bruno Cornec, 17 years ago
  • Remove useless .keep file
  • remove temporary.iso name remaining and suppress a warning in log trying to remove it in the tmpdir
  • Property svn:keywords set to Id
File size: 45.6 KB
Line 
1/* libmondo-tools.c misc tools
2 $Id: libmondo-tools.c 1666 2007-09-27 12:25:24Z bruno $
3.
4
5
606/28
7- abort if RAID partitions found but /etc/raidtab not found
8
906/25
10- don't insist on ms-sys; recommend it
11- don't fatal_error if can't open log file
12
1306/14
14- call mindi -V before calling mindi --makemountlist
15
1604/09
17- lots of malloc'd char*'s instead of char[]'s in post_param_config'n
18
1904/02
20- better sanity-checking, re: /etc/modules.conf
21
2202/15
23- abort if Windows dir but no ms-sys or parted
24
2502/08
26- missing ramdisk/initrd support is nonfatal now (but stupid)
27
2801/16
29- added g_kernel_version and get_kernel_version()
30
3101/08/2004
32- fixed /boot mounter thingy
33
3411/14/2003
35- if <50MB free in /root, softlink /root/images/mindi to
36 /home/root/images/mindi as a workaround
37
3810/23
39- streaming backups now generate 4MB sets; CDs, 8MB sets
40
4110/21
42- better at finding your /boot in order to mount it, if nec.
43- link /etc/modules.conf to /etc/conf.modules if former
44 is missing but latter is not
45- changed "/mnt/cdrom" to MNT_CDROM
46- changed "/mnt/floppy" to MNT_FLOPPY
47
4810/13
49- added stop_magicdev_if_necessary()
50- added restart_magicdev_if_necessary()
51
5210/02
53- don't eject if bkpinfo->please_dont_eject is TRUE
54
5509/28
56- fixed segfault in mount_..._necessary
57
5809/26
59- ask for cmp (or create workaround if possible)
60
6109/25
62- add DVD support
63
6409/24
65- don't overwrite existing media-dev value in bkpinfo IF it's
66 a tape device AND it's already populated by /dev/{something}
67 ...This helps w/ weird tape drives
68
6909/23
70- malloc/free global strings in new subroutines - malloc_libmondo_global_strings()
71 and free_libmondo_global_strings() - which are in libmondo-tools.c
72
7309/18
74- added stop_autofs_if_necessary() and restart_autofs_if_necessary()
75
7609/13
77- added log_debug_msg()
78- turned log_it() into a macro
79
8009/10
81- reduced PPCFG_RAMDISK to 150m (was 200m)
82- max set size is now 8MB (was 6)
83- added 'buffer' to requisite tools
84
8508/29
86- typical set size is now 5MB
87
8807/22
89- increased PPCFG* to 200m
90
9105/07
92- changed grep -m1 to grep | head -n1 for Debian users
93- pre_param_...() also mkdir -p /mnt/cdrom, just in case
94
9505/05
96- cleaner logging of call to dd if=<tape> of=/dev/null
97- added Joshua Oreman's FreeBSD patches
98
9905/04
100- added Herman Kuster's multi-level bkp patch
101
10205/02
103- log_it() --- "Message repeated N times" (if it was)
104
10504/24
106- added lots of assert()'s and log_OS_error()'s
107- reset_bkpinfop() --- reset all media_size[] array
108- increased tmpfs ramdisk to size=100m
109
11004/22
111- post_param_configuration() --- store iso-dev and isodir
112
11304/05
114- re-enable tmpfs ramdisk/mountpt _but_ make sure size=80m
115- in post_param_configuration(), use cdrecord in preference
116 to dvdrecord now
117
11803/27
119- disabled tmpfs ramdisk/mountpt
120
12101/02/2003
122- bkpinfo->makefilelist = TRUE
123
12412/10/2002
125- added g_loglevel
126- fixed minor bug in clean_up_KDE_desktop_if_necessary()
127- log versions of newt, slang, ncurses
128- isodir defaults to / if disaster recovery
129
13011/28
131- unmount all CD devices at start
132- added clean_up_KDE_desktop_if_necessary()
133
13411/20
135- don't use lilo.conf.anaconda; abort instead
136- mount/unmount /boot partition for Gentoo 1.2 users
137
13811/13
139- call mindi --makemountlist as part of testing sanity of distro
140
14111/08
142- added a couple of chmod 700's (one for scratchdir, one for tmpdir)
143 to post_param_configuration()
144
14510/01 - 10/31
146- added checking of / and /root's free space to some_basic_sanity_checks()
147- moved some subroutines here from common/libmondo-archive
148
14909/01 - 09/30
150- don't write log_it()'s string to stdout, even if text mode
151- tell user the kernel is bad if it has no ramdisk support but allow
152 it if they want to use the failsafe kernel for booting
153- run_program_and_log_output() now takes boolean operator to specify
154 whether it will log its activities in the event of _success_
155- if mkfs.vfat not found but mkfs.msdos found then create a softlink
156 from the former to the latter
157
15808/01 - 08/31
159- if /etc/lilo.conf not found not /etc/lilo.conf.anaconda found
160 then create a softlink from the former to the latter, to work
161 around RH7.3's b0rken LILO support
162- handle unknown media size
163
16407/27
165- created
166*/
167
168
169/**
170 * @file
171 * Miscellaneous tools that didn't really fit anywhere else.
172 */
173
174#include "my-stuff.h"
175#include "mondostructures.h"
176#include "lib-common-externs.h"
177#include "libmondo-tools.h"
178#include "libmondo-gui-EXT.h"
179#include "libmondo-files-EXT.h"
180#include "libmondo-fork-EXT.h"
181#include "libmondo-raid-EXT.h"
182#include <sys/socket.h>
183#include <netdb.h>
184#include <stdlib.h>
185#include <netinet/in.h>
186#include <arpa/inet.h>
187#include <sys/utsname.h>
188
189/*@unused@*/
190//static char cvsid[] = "$Id: libmondo-tools.c 1666 2007-09-27 12:25:24Z bruno $";
191
192extern int g_tape_buffer_size_MB;
193extern char *g_erase_tmpdir_and_scratchdir;
194extern char *g_serial_string;
195extern bool g_text_mode;
196extern int g_currentY;
197extern int g_current_media_number;
198extern char *MONDO_LOGFILE;
199
200/* Reference to global bkpinfo */
201extern struct s_bkpinfo *bkpinfo;
202
203/**
204 * @addtogroup globalGroup
205 * @{
206 */
207bool g_remount_cdrom_at_end, ///< TRUE if we unmounted the CD-ROM and should remount it when done with the backup.
208 g_remount_floppy_at_end; ///< TRUE if we unmounted the floppy and should remount it when done with the backup.
209bool g_cd_recovery; ///< TRUE if we're making an "autonuke" backup.
210double g_kernel_version;
211
212/**
213 * The place where /boot is mounted.
214 */
215char *g_boot_mountpt = NULL;
216
217/**
218 * The location of Mondo's home directory.
219 */
220char *g_mondo_home = NULL;
221
222/**
223 * The serial string (used to differentiate between backups) of the current backup.
224 */
225char *g_serial_string = NULL;
226
227/**
228 * The location where tmpfs is mounted, or "" if it's not mounted.
229 */
230char *g_tmpfs_mountpt = NULL;
231char *g_magicdev_command = NULL;
232
233/**
234 * The default maximum level to log messages at or below.
235 */
236int g_loglevel = DEFAULT_DEBUG_LEVEL;
237
238/* @} - end of globalGroup */
239
240
241extern pid_t g_buffer_pid;
242extern pid_t g_main_pid;
243
244extern t_bkptype g_backup_media_type;
245
246extern bool am_I_in_disaster_recovery_mode(void);
247
248
249/**
250 * @addtogroup utilityGroup
251 * @{
252 */
253/**
254 * Assertion handler. Prints a friendly message to the user,
255 * offering to ignore all, dump core, break to debugger,
256 * exit, or ignore. Intended to be used with an assert() macro.
257 *
258 * @param file The file in which the assertion triggered.
259 * @param function The function (@c __FUNCTION__) in which the assertion triggered.
260 * @param line The line number of the assert() statement.
261 * @param exp The expression that failed (as a string).
262 */
263void _mondo_assert_fail(const char *file,
264 const char *function, int line, const char *exp)
265{
266 static int ignoring_assertions = 0;
267 bool is_valid = TRUE;
268
269 log_it("ASSERTION FAILED: `%s' at %s:%d in %s", exp, file, line,
270 function);
271 if (ignoring_assertions) {
272 log_it("Well, the user doesn't care...");
273 return;
274 }
275#ifndef _XWIN
276 if (!g_text_mode)
277 newtSuspend();
278#endif
279 printf("ASSERTION FAILED: `%s'\n", exp);
280 printf("\tat %s:%d in %s\n\n", file, line, function);
281 printf("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
282 do {
283 is_valid = TRUE;
284 switch (toupper(getchar())) {
285 case 'A': // ignore (A)ll
286 ignoring_assertions = 1;
287 break;
288 case 'B': // a(B)ort
289 signal(SIGABRT, SIG_DFL); /* prevent SIGABRT handler from running */
290 raise(SIGABRT);
291 break; /* "can't get here" */
292 case 'D': // (D)ebug, aka asm("int 3")
293#ifdef __IA32__
294 __asm__ __volatile__("int $3"); // break to debugger
295#endif
296 break;
297 case 'E': // (E)xit
298 fatal_error("Failed assertion -- see above for details");
299 break; /* "can't get here" */
300 case 'I': // (I)gnore
301 break;
302 /* These next two work as follows:
303 the `default' catches the user's invalid choice and says so;
304 the '\n' catches the newline on the end and prints the prompt again.
305 */
306 case '\n':
307 printf
308 ("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
309 break;
310 default:
311 is_valid = FALSE;
312 printf("Invalid choice.\n");
313 break;
314 }
315 } while (!is_valid);
316
317 if (ignoring_assertions) {
318 log_it("Ignoring ALL assertions from now on.");
319 } else {
320 log_it("Ignoring assertion: %s", exp);
321 }
322
323 getchar(); // skip \n
324
325#ifndef _XWIN
326 if (!g_text_mode)
327 newtResume();
328#endif
329}
330
331/**
332 * Clean's up users' KDE desktops.
333 * @bug Details about this function are unknown.
334 */
335void clean_up_KDE_desktop_if_necessary(void)
336{
337 char *tmp;
338
339 malloc_string(tmp);
340 strcpy(tmp,
341 "for i in `find /root /home -type d -name Desktop -maxdepth 2`; do \
342file=$i/.directory; if [ -f \"$file\" ] ; then mv -f $file $file.old ; \
343awk '{if (index($0, \"rootimagesmindi\")) { while (length($0)>2) { getline;} ; } \
344else { print $0;};}' $file.old > $file ; fi ; done");
345 run_program_and_log_output(tmp, 5);
346 paranoid_free(tmp);
347}
348
349
350/**
351 * Locate mondoarchive's home directory. Searches in /usr/local/mondo, /usr/share/mondo,
352 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
353 *
354 * @param home_sz String to store the home directory ("" if it could not be found).
355 * @return 0 for success, nonzero for failure.
356 */
357int find_and_store_mondoarchives_home(char *home_sz)
358{
359 assert(home_sz != NULL);
360 strcpy(home_sz, MONDO_SHARE);
361 return (0);
362}
363
364
365char *get_architecture(void) {
366#ifdef __IA32__
367# ifdef __X86_64__
368 return ("x86_64");
369# else
370 return ("i386");
371# endif
372#endif
373#ifdef __IA64__
374 return ("ia64");
375#endif
376 return ("unknown");
377}
378
379
380char *get_uname_m(void) {
381
382 struct utsname utsn;
383 char *tmp = NULL;
384
385 uname(&utsn);
386 asprintf(&tmp, utsn.machine);
387 return (tmp);
388}
389
390
391
392double get_kernel_version(void)
393{
394 char *p, tmp[200];
395 double d;
396#ifdef __FreeBSD__
397 // JOSH - FIXME :)
398 d = 5.2; // :-)
399#else
400 strcpy(tmp, call_program_and_get_last_line_of_output("uname -r"));
401 p = strchr(tmp, '.');
402 if (p) {
403 p = strchr(++p, '.');
404 if (p) {
405 while (*p) {
406 *p = *(p + 1);
407 p++;
408 }
409 }
410 }
411// log_msg(1, "tmp = '%s'", tmp);
412 d = atof(tmp);
413#endif
414 log_msg(1, "g_kernel_version = %f", d);
415 return (d);
416}
417
418
419
420
421
422/**
423 * Get the current time.
424 * @return number of seconds since the epoch.
425 */
426long get_time()
427{
428 return (long) time((void *) 0);
429}
430
431
432
433
434
435
436
437/**
438 * Initialize a RAID volume structure, setting fields to zero. The
439 * actual hard drive is unaffected.
440 *
441 * @param raidrec The RAID volume structure to initialize.
442 * @note This function is system dependent.
443 */
444#ifdef __FreeBSD__
445void initialize_raidrec(struct vinum_volume *raidrec)
446{
447 int i, j;
448 raidrec->volname[0] = '\0';
449 raidrec->plexes = 0;
450 for (i = 0; i < 9; ++i) {
451 raidrec->plex[i].raidlevel = -1;
452 raidrec->plex[i].stripesize = 0;
453 raidrec->plex[i].subdisks = 0;
454 for (j = 0; j < 9; ++j) {
455 strcpy(raidrec->plex[i].sd[j].which_device, "");
456 }
457 }
458}
459#else
460void initialize_raidrec(struct raid_device_record *raidrec)
461{
462 assert(raidrec != NULL);
463 raidrec->raid_device[0] = '\0';
464 raidrec->raid_level = -9;
465 raidrec->persistent_superblock = 1;
466 raidrec->chunk_size = 64;
467 raidrec->parity = -1;
468 raidrec->data_disks.entries = 0;
469 raidrec->spare_disks.entries = 0;
470 raidrec->parity_disks.entries = 0;
471 raidrec->failed_disks.entries = 0;
472 raidrec->additional_vars.entries = 0;
473}
474#endif
475
476
477
478
479/**
480 * Insert modules that Mondo requires.
481 * Currently inserts @c msdos, @c vfat, and @c loop for Linux;
482 * @c msdosfs and @c ext2fs for FreeBSD.
483 */
484void insmod_crucial_modules(void)
485{
486#ifdef __FreeBSD__
487 system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
488 system("kldstat | grep ext2fs || kldload ext2fs 2> /dev/null");
489#else
490 system("modprobe -a msdos vfat loop &> /dev/null");
491#endif
492}
493
494
495/**
496 * Log a trace message to the trace file.
497 * @bug This function seems orphaned. Please remove.
498 */
499void log_trace(char *o)
500{
501 /*@ pointers **************************************************** */
502 FILE *fout;
503
504 /*@ buffers ***************************************************** */
505 char output[MAX_STR_LEN];
506
507 /*@ int ****************************************************** */
508 int i;
509
510 /*@ end vars *************************************************** */
511
512 if (o[0] == '\0') {
513 return;
514 }
515 strcpy(output, o);
516 i = (int) strlen(output);
517 if (i <= 0) {
518 return;
519 }
520 if (output[i - 1] < 32) {
521 output[i - 1] = '\0';
522 }
523 if (g_text_mode
524 /* && !strstr(last_line_of_file(MONDO_LOGFILE),output) */ ) {
525 printf("%s\n", output);
526 }
527
528 fout = fopen(MONDO_TRACEFILE, "a");
529 if (fout) {
530 fprintf(fout, "%s\n", output);
531 paranoid_fclose(fout);
532 } else {
533 log_OS_error("Cannot write to tracefile");
534 }
535}
536
537
538
539
540
541/**
542 * Finish configuring the backup information structure. Call this function
543 * to set the parameters that depend on those that can be given on the command
544 * line.
545 *
546 * @param bkpinfo The backup information structure. Fields modified/used:
547 * - Used: @c bkpinfo->backup_data
548 * - Used: @c bkpinfo->backup_media_type
549 * - Used: @c bkpinfo->cdrw_speed
550 * - Used: @c bkpinfo->compression_level
551 * - Used: @c bkpinfo->include_paths
552 * - Used: @c bkpinfo->prefix
553 * - Used: @c bkpinfo->isodir
554 * - Used: @c bkpinfo->manual_cd_tray
555 * - Used: @c bkpinfo->make_cd_use_lilo
556 * - Used: @c bkpinfo->media_device
557 * - Used: @c bkpinfo->nfs_mount
558 * - Used: @c bkpinfo->nonbootable_backup
559 * - Used: @c bkpinfo->scratchdir
560 * - Used: @c bkpinfo->tmpdir
561 * - Used: @c bkpinfo->use_lzo
562 * - Modified: @c bkpinfo->call_before_iso
563 * - Modified: @c bkpinfo->call_make_iso
564 * - Modified: @c bkpinfo->optimal_set_size
565 * - Modified: @c bkpinfo->zip_exe
566 * - Modified: @c bkpinfo->zip_suffix
567 *
568 * @return number of errors, or 0 for success.
569 * @note Also creates directories that are specified in the @c bkpinfo structure but
570 * do not exist.
571 */
572int post_param_configuration()
573{
574 char *extra_cdrom_params;
575 char *mondo_mkisofs_sz;
576 char *command;
577 char *mtpt;
578 char *hostname, *ip_address;
579 int retval = 0;
580 long avm = 0;
581 char *colon;
582 char *cdr_exe;
583 char *tmp;
584 char call_before_iso_user[MAX_STR_LEN] = "\0";
585 int rdsiz_MB;
586 char *iso_dev;
587 char *iso_mnt;
588 char *iso_tmp;
589 char *iso_path;
590
591 assert(bkpinfo != NULL);
592 malloc_string(extra_cdrom_params);
593 malloc_string(mondo_mkisofs_sz);
594 malloc_string(command);
595 malloc_string(mtpt);
596 malloc_string(hostname);
597 malloc_string(ip_address);
598 malloc_string(cdr_exe);
599 malloc_string(tmp);
600 malloc_string(iso_dev);
601 malloc_string(iso_mnt);
602 malloc_string(iso_tmp);
603 malloc_string(iso_path);
604 bkpinfo->optimal_set_size =
605 (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) *
606 1024;
607
608 log_msg(1, "Foo");
609 if (bkpinfo->backup_media_type == tape) {
610 log_msg(1, "Bar");
611 sprintf(tmp, "mt -f %s status", bkpinfo->media_device);
612 log_msg(1, "tmp = '%s'", tmp);
613 if (run_program_and_log_output(tmp, 3)) {
614 fatal_error
615 ("Unable to open tape device. If you haven't specified it with -d, do so. If you already have, check your parameter. I think it's wrong.");
616 }
617 }
618 make_hole_for_dir(bkpinfo->scratchdir);
619 if (bkpinfo->backup_media_type == iso)
620 make_hole_for_dir(bkpinfo->isodir);
621
622 run_program_and_log_output("uname -a", 5);
623 run_program_and_log_output("cat /etc/*-release", 5);
624 run_program_and_log_output("cat /etc/*issue*", 5);
625 sprintf(g_tmpfs_mountpt, "%s/tmpfs", bkpinfo->tmpdir);
626 sprintf(command, "mkdir -p %s", g_tmpfs_mountpt);
627 paranoid_system(command);
628 rdsiz_MB = PPCFG_RAMDISK_SIZE + g_tape_buffer_size_MB;
629#ifdef __FreeBSD__
630 strcpy(tmp,
631 call_program_and_get_last_line_of_output
632 ("vmstat | tail -1 | tr -s ' ' | cut -d' ' -f6"));
633 avm += atol(tmp);
634 strcpy(tmp,
635 call_program_and_get_last_line_of_output
636 ("swapinfo | grep -v Device | tr -s ' ' | cut -d' ' -f4 | tr '\n' '+' | sed 's/+$//' | bc"));
637 avm += atol(tmp);
638 sprintf(command, "mdmfs -s %d%c md9 %s", rdsiz_MB, 'm',
639 g_tmpfs_mountpt);
640#else
641 strcpy(tmp,
642 call_program_and_get_last_line_of_output
643 ("free | grep ':' | tr -s ' ' '\t' | cut -f2 | head -n1"));
644 avm += atol(tmp);
645 sprintf(command, "mount /dev/shm -t tmpfs %s -o size=%d%c",
646 g_tmpfs_mountpt, rdsiz_MB, 'm');
647 run_program_and_log_output("cat /proc/cpuinfo", 5);
648 run_program_and_log_output
649 ("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc",
650 5);
651#endif
652 if (avm / 1024 > rdsiz_MB * 3) {
653 if (run_program_and_log_output(command, 5)) {
654 g_tmpfs_mountpt[0] = '\0';
655 log_it("Failed to mount tmpfs");
656 } else {
657 log_it("Tmpfs mounted OK - %d MB", rdsiz_MB);
658 }
659 } else {
660 g_tmpfs_mountpt[0] = '\0';
661 log_it("It doesn't seem you have enough swap to use tmpfs. Fine.");
662 }
663
664 if (bkpinfo->use_lzo) {
665 strcpy(bkpinfo->zip_exe, "lzop");
666 strcpy(bkpinfo->zip_suffix, "lzo");
667 } else if (bkpinfo->use_gzip) {
668 strcpy(bkpinfo->zip_exe, "gzip");
669 strcpy(bkpinfo->zip_suffix, "gz");
670 } else if (bkpinfo->compression_level != 0) {
671 strcpy(bkpinfo->zip_exe, "bzip2");
672 strcpy(bkpinfo->zip_suffix, "bz2");
673 } else {
674 bkpinfo->zip_exe[0] = bkpinfo->zip_suffix[0] = '\0';
675 }
676
677// DVD
678
679 if (bkpinfo->backup_media_type == dvd) {
680 extra_cdrom_params[0] = '\0';
681 mondo_mkisofs_sz[0] = '\0';
682 if (find_home_of_exe("growisofs")) {
683 strcpy(cdr_exe, "growisofs");
684 } // unlikely to be used
685 else {
686 fatal_error("Please install growisofs.");
687 }
688 if (bkpinfo->nonbootable_backup) {
689 strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
690 } else if
691#ifdef __FreeBSD__
692 (TRUE)
693#else
694 (bkpinfo->make_cd_use_lilo)
695#endif
696#ifdef __IA64__
697 {
698 strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
699 }
700#else
701 {
702 strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
703 }
704#endif
705 else
706 {
707 strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
708 }
709 if (bkpinfo->manual_cd_tray) {
710 fatal_error("Manual CD tray + DVD not supported yet.");
711 // -m isn't supported by growisofs, BTW...
712 } else {
713 sprintf(bkpinfo->call_make_iso,
714 "%s %s -Z %s . 2>> _ERR_",
715 mondo_mkisofs_sz,
716 extra_cdrom_params, bkpinfo->media_device);
717 }
718 if (getenv ("SUDO_COMMAND")) {
719 sprintf(command, "strings `which growisofs` | grep -c SUDO_COMMAND");
720 if (!strcmp(call_program_and_get_last_line_of_output(command), "1")) {
721 popup_and_OK("Fatal Error: Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
722 fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
723 }
724 }
725 log_msg(2, "call_make_iso (DVD res) is ... %s",
726 bkpinfo->call_make_iso);
727 } // end of DVD code
728
729// CD-R or CD-RW
730 if (bkpinfo->backup_media_type == cdrw
731 || bkpinfo->backup_media_type == cdr) {
732 extra_cdrom_params[0] = '\0';
733 if (!bkpinfo->manual_cd_tray) {
734 strcat(extra_cdrom_params, "-waiti ");
735 }
736 if (bkpinfo->backup_media_type == cdrw) {
737 strcat(extra_cdrom_params, "blank=fast ");
738 }
739 if (find_home_of_exe("cdrecord")) {
740 strcpy(cdr_exe, "cdrecord");
741 } else if (find_home_of_exe("dvdrecord")) {
742 strcpy(cdr_exe, "dvdrecord");
743 } else {
744 fatal_error("Please install either cdrecord or dvdrecord.");
745 }
746 if (bkpinfo->nonbootable_backup) {
747 strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_NONBOOT);
748 } else if
749#ifdef __FreeBSD__
750 (TRUE)
751#else
752 (bkpinfo->make_cd_use_lilo)
753#endif
754#ifdef __IA64__
755 {
756 strcat(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_ELILO);
757 }
758#else
759 {
760 strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_LILO);
761 }
762#endif
763 else
764 {
765 strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_SYSLINUX);
766 }
767 if (bkpinfo->manual_cd_tray) {
768 if (bkpinfo->call_before_iso[0] == '\0') {
769 sprintf(bkpinfo->call_before_iso,
770 "%s -o %s/"MONDO_TMPISOS" . 2>> _ERR_",
771 mondo_mkisofs_sz, bkpinfo->tmpdir);
772 } else {
773 strncpy(call_before_iso_user, bkpinfo->call_before_iso, MAX_STR_LEN);
774 sprintf (bkpinfo->call_before_iso,
775 "( %s -o %s/"MONDO_TMPISOS" . 2>> _ERR_ ; %s )",
776 mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
777 }
778 log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
779 sprintf(bkpinfo->call_make_iso,
780 "%s %s -v %s fs=4m dev=%s speed=%d %s/"MONDO_TMPISOS,
781 cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject",
782 extra_cdrom_params, bkpinfo->media_device,
783 bkpinfo->cdrw_speed, bkpinfo->tmpdir);
784 } else {
785 sprintf(bkpinfo->call_make_iso,
786 "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s speed=%d -",
787 mondo_mkisofs_sz, cdr_exe,
788 (bkpinfo->please_dont_eject) ? " " : "-eject",
789 extra_cdrom_params, bkpinfo->media_device,
790 bkpinfo->cdrw_speed);
791 }
792 } // end of CD code
793
794 /*
795 if (bkpinfo->backup_data && bkpinfo->backup_media_type == tape)
796 {
797 sprintf (tmp,
798 "dd if=/dev/zero of=%s bs=%ld count=32 2> /dev/null",
799 bkpinfo->media_device, bkpinfo->internal_tape_block_size);
800 if (system(tmp))
801 {
802 retval++;
803 fprintf (stderr,
804 "Cannot write to tape device. Is the tape set read-only?\n");
805 }
806 } // end of tape code
807 */
808
809
810 if (bkpinfo->backup_media_type == iso) {
811
812/* Patch by Conor Daly <conor.daly@met.ie>
813 * 23-june-2004
814 * Break up isodir into iso_mnt and iso_path
815 * These will be used along with iso-dev at restore time
816 * to locate the ISOs where ever they're mounted
817 */
818
819 log_it("isodir = %s", bkpinfo->isodir);
820 sprintf(command, "df -P %s | tail -n1 | cut -d' ' -f1",
821 bkpinfo->isodir);
822 log_it("command = %s", command);
823 log_it("res of it = %s",
824 call_program_and_get_last_line_of_output(command));
825 sprintf(iso_dev, "%s",
826 call_program_and_get_last_line_of_output(command));
827 sprintf(tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
828 write_one_liner_data_file(tmp,
829 call_program_and_get_last_line_of_output
830 (command));
831
832 sprintf(command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3",
833 iso_dev);
834 log_it("command = %s", command);
835 log_it("res of it = %s",
836 call_program_and_get_last_line_of_output(command));
837 sprintf(iso_mnt, "%s",
838 call_program_and_get_last_line_of_output(command));
839 sprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
840 write_one_liner_data_file(tmp,
841 call_program_and_get_last_line_of_output
842 (command));
843 log_it("isomnt: %s, %d", iso_mnt, strlen(iso_mnt));
844 sprintf(iso_tmp, "%s", bkpinfo->isodir);
845 if (strlen(iso_tmp) < strlen(iso_mnt)) {
846 iso_path[0] = '\0';
847 } else {
848 sprintf(iso_path, "%s", iso_tmp + strlen(iso_mnt));
849 }
850 sprintf(tmp, "%s/ISODIR", bkpinfo->tmpdir);
851 write_one_liner_data_file(tmp, iso_path);
852 log_it("isodir: %s", iso_path);
853 sprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
854 write_one_liner_data_file(tmp, bkpinfo->prefix);
855 log_it("iso-prefix: %s", bkpinfo->prefix);
856
857/* End patch */
858 } // end of iso code
859
860 if (bkpinfo->backup_media_type == nfs) {
861 strcpy(hostname, bkpinfo->nfs_mount);
862 colon = strchr(hostname, ':');
863 if (!colon) {
864 log_it("nfs mount doesn't have a colon in it");
865 retval++;
866 } else {
867 struct hostent *hent;
868
869 *colon = '\0';
870 hent = gethostbyname(hostname);
871 if (!hent) {
872 log_it("Can't resolve NFS mount (%s): %s", hostname,
873 hstrerror(h_errno));
874 retval++;
875 } else {
876 strcpy(ip_address, inet_ntoa
877 ((struct in_addr)
878 *((struct in_addr *) hent->h_addr)));
879 strcat(ip_address, strchr(bkpinfo->nfs_mount, ':'));
880 strcpy(bkpinfo->nfs_mount, ip_address);
881 }
882 }
883 store_nfs_config();
884 }
885
886 log_it("Finished processing incoming params");
887 if (retval) {
888 fprintf(stderr, "Type 'man mondoarchive' for help.\n");
889 }
890 if (strlen(bkpinfo->tmpdir) < 2 || strlen(bkpinfo->scratchdir) < 2) {
891 log_it("tmpdir or scratchdir are blank/missing");
892 retval++;
893 }
894 if (bkpinfo->include_paths[0] == '\0') {
895 // fatal_error ("Why no backup path?");
896 strcpy(bkpinfo->include_paths, "/");
897 }
898 chmod(bkpinfo->scratchdir, 0700);
899 g_backup_media_type = bkpinfo->backup_media_type;
900 paranoid_free(mtpt);
901 paranoid_free(extra_cdrom_params);
902 paranoid_free(mondo_mkisofs_sz);
903 paranoid_free(command);
904 paranoid_free(hostname);
905 paranoid_free(ip_address);
906 paranoid_free(cdr_exe);
907 paranoid_free(tmp);
908 paranoid_free(iso_dev);
909 paranoid_free(iso_mnt);
910 paranoid_free(iso_tmp);
911 paranoid_free(iso_path);
912 return (retval);
913}
914
915
916
917/**
918 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
919 * Seeds the random-number generator, loads important modules, checks the sanity
920 * of the user's Linux distribution, and deletes logfile.
921 * @param bkpinfo The backup information structure. Will be initialized.
922 * @return number of errors (0 for success)
923 */
924int pre_param_configuration()
925{
926 int res = 0;
927 char *tmp = NULL;
928
929 make_hole_for_dir(MNT_CDROM);
930 assert(bkpinfo != NULL);
931 srandom((unsigned long) (time(NULL)));
932 insmod_crucial_modules();
933 if (bkpinfo->disaster_recovery) {
934 if (!does_nonMS_partition_exist()) {
935 fatal_error
936 ("I am in disaster recovery mode\nPlease don't run mondoarchive.");
937 }
938 }
939
940 unlink(MONDO_TRACEFILE);
941 asprintf(&tmp,"rm -Rf %s/changed.files*",MINDI_CACHE);
942 run_program_and_log_output(tmp, FALSE);
943 paranoid_free(tmp);
944 if (find_and_store_mondoarchives_home(g_mondo_home)) {
945 fprintf(stderr,
946 "Cannot find Mondo's homedir. I think you have >1 'mondo' directory on your hard disk. Please delete the superfluous 'mondo' directories and try again\n");
947 res++;
948 return (res);
949 }
950 res += some_basic_system_sanity_checks();
951 if (res) {
952 log_it("Your distribution did not pass Mondo's sanity test.");
953 }
954 g_current_media_number = 1;
955 bkpinfo->postnuke_tarball[0] = bkpinfo->nfs_mount[0] = '\0';
956 return (res);
957}
958
959void setup_tmpdir(char *path) {
960
961 char *tmp = NULL;
962 char *p = NULL;
963
964 if (bkpinfo->tmpdir != NULL) {
965 /* purging a potential old tmpdir */
966 asprintf(&tmp,"rm -Rf %s",bkpinfo->tmpdir);
967 system(tmp);
968 paranoid_free(tmp);
969 }
970
971 if (path != NULL) {
972 asprintf(&tmp, "%s/mondo.tmp.XXXXXX", path);
973 } else if (getenv("TMPDIR")) {
974 asprintf(&tmp, "%s/mondo.tmp.XXXXXX", getenv("TMPDIR"));
975 } else if (getenv("TMP")) {
976 asprintf(&tmp, "%s/mondo.tmp.XXXXXX", getenv("TMP"));
977 } else {
978 asprintf(&tmp, "/tmp/mondo.tmp.XXXXXX");
979 }
980 p = mkdtemp(tmp);
981 if (p == NULL) {
982 log_it("Failed to create global tmp directory %s for Mondo.",tmp);
983 finish(-1);
984 }
985 strcpy(bkpinfo->tmpdir,p);
986 paranoid_free(tmp);
987
988 //sprintf(bkpinfo->tmpdir, "%s/tmpfs/mondo.tmp.%d", "/tmp", (int) (random() % 32768)); // for mondorestore
989}
990
991
992/**
993 * Reset all fields of the backup information structure to a sensible default.
994 * @param bkpinfo The @c bkpinfo to reset.
995 */
996void reset_bkpinfo()
997{
998 int i;
999
1000 log_msg(1, "Hi");
1001 assert(bkpinfo != NULL);
1002 memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
1003
1004 /* special case for tmpdir as used eveywhere after */
1005 setup_tmpdir(NULL);
1006
1007 bkpinfo->manual_cd_tray = FALSE;
1008 bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
1009 bkpinfo->media_device[0] = '\0';
1010 for (i = 0; i <= MAX_NOOF_MEDIA; i++) {
1011 bkpinfo->media_size[i] = -1;
1012 }
1013 bkpinfo->boot_loader = '\0';
1014 bkpinfo->boot_device[0] = '\0';
1015 bkpinfo->zip_exe[0] = '\0';
1016 bkpinfo->zip_suffix[0] = '\0';
1017 bkpinfo->restore_path[0] = '\0';
1018 bkpinfo->use_lzo = FALSE;
1019 bkpinfo->use_gzip = FALSE;
1020 bkpinfo->do_not_compress_these[0] = '\0';
1021 bkpinfo->verify_data = FALSE;
1022 bkpinfo->backup_data = FALSE;
1023 bkpinfo->restore_data = FALSE;
1024 bkpinfo->disaster_recovery =
1025 (am_I_in_disaster_recovery_mode()? TRUE : FALSE);
1026 if (bkpinfo->disaster_recovery) {
1027 strcpy(bkpinfo->isodir, "/");
1028 } else {
1029 strcpy(bkpinfo->isodir, "/root/images/mondo");
1030 }
1031 strcpy(bkpinfo->prefix, STD_PREFIX);
1032
1033 bkpinfo->scratchdir[0] = '\0';
1034 bkpinfo->make_filelist = TRUE; // unless -J supplied to mondoarchive
1035 bkpinfo->optimal_set_size = 0;
1036 bkpinfo->backup_media_type = none;
1037 strcpy(bkpinfo->include_paths, "/");
1038 bkpinfo->exclude_paths[0] = '\0';
1039 bkpinfo->call_before_iso[0] = '\0';
1040 bkpinfo->call_make_iso[0] = '\0';
1041 bkpinfo->call_burn_iso[0] = '\0';
1042 bkpinfo->call_after_iso[0] = '\0';
1043 bkpinfo->image_devs[0] = '\0';
1044 bkpinfo->postnuke_tarball[0] = '\0';
1045 bkpinfo->kernel_path[0] = '\0';
1046 bkpinfo->nfs_mount[0] = '\0';
1047 bkpinfo->nfs_remote_dir[0] = '\0';
1048 bkpinfo->wipe_media_first = FALSE;
1049 bkpinfo->differential = FALSE;
1050 bkpinfo->cdrw_speed = 0;
1051// patch by Herman Kuster
1052 bkpinfo->differential = 0;
1053// patch end
1054 bkpinfo->compression_level = 3;
1055}
1056
1057
1058
1059
1060/**
1061 * Get the remaining free space (in MB) on @p partition.
1062 * @param partition The partition to check free space on (either a device or a mountpoint).
1063 * @return The free space on @p partition, in MB.
1064 */
1065long free_space_on_given_partition(char *partition)
1066{
1067 char command[MAX_STR_LEN], out_sz[MAX_STR_LEN];
1068 long res;
1069
1070 assert_string_is_neither_NULL_nor_zerolength(partition);
1071
1072 sprintf(command, "df -m -P %s &> /dev/null", partition);
1073 if (system(command)) {
1074 return (-1);
1075 } // partition does not exist
1076 sprintf(command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4",
1077 partition);
1078 strcpy(out_sz, call_program_and_get_last_line_of_output(command));
1079 if (strlen(out_sz) == 0) {
1080 return (-1);
1081 } // error within df, probably
1082 res = atol(out_sz);
1083 return (res);
1084}
1085
1086
1087
1088/**
1089 * Check the user's system for sanity. Checks performed:
1090 * - make sure user has enough RAM (32mb required, 64mb recommended)
1091 * - make sure user has enough free space in @c /
1092 * - check kernel for ramdisk support
1093 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
1094 * - make sure CD-ROM is unmounted
1095 * - make sure /etc/modules.conf exists
1096 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
1097 *
1098 * @return number of problems with the user's setup (0 for success)
1099 */
1100int some_basic_system_sanity_checks()
1101{
1102
1103 /*@ buffers ************ */
1104 char tmp[MAX_STR_LEN];
1105 // char command[MAX_STR_LEN];
1106
1107 /*@ int's *************** */
1108 int retval = 0;
1109 long Lres;
1110
1111
1112 mvaddstr_and_log_it(g_currentY, 0,
1113 "Checking sanity of your Linux distribution");
1114#ifndef __FreeBSD__
1115 if (system("which mkfs.vfat &> /dev/null")
1116 && !system("which mkfs.msdos &> /dev/null")) {
1117 log_it
1118 ("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
1119 run_program_and_log_output
1120 ("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
1121 }
1122 strcpy(tmp,
1123 call_program_and_get_last_line_of_output
1124 ("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2"));
1125 if (atol(tmp) < 35000) {
1126 retval++;
1127 log_to_screen("You must have at least 32MB of RAM to use Mondo.");
1128 }
1129 if (atol(tmp) < 66000) {
1130 log_to_screen
1131 ("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
1132 }
1133#endif
1134
1135 Lres = free_space_on_given_partition(MINDI_CACHE);
1136 log_it("Free space on partition of %s = %ld MB", MINDI_CACHE, Lres);
1137
1138 if (Lres < 50) {
1139 sprintf(tmp, "The partition of %s has <50MB free. Please free up space or enlarge the partition or make %s a symbolic link.", MINDI_CACHE, MINDI_CACHE);
1140 fatal_error(tmp);
1141 }
1142
1143 if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
1144 retval++;
1145 log_to_screen
1146 ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
1147 fatal_error
1148 ("Please use \"su -\", not \"su\" to become root. OK? ...and please don't e-mail the mailing list or me about this. Just read the message. :)");
1149 }
1150#ifndef __FreeBSD__
1151 if (run_program_and_log_output
1152 ("grep ramdisk /proc/devices", FALSE)) {
1153 if (!ask_me_yes_or_no
1154 ("Your kernel has no ramdisk support. That's mind-numbingly stupid but I'll allow it if you're planning to use a failsafe kernel. Are you?"))
1155 {
1156 // retval++;
1157 log_to_screen
1158 ("It looks as if your kernel lacks ramdisk and initrd support.");
1159 log_to_screen
1160 ("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
1161 }
1162 }
1163#endif
1164 retval += whine_if_not_found(MKE2FS_OR_NEWFS);
1165 retval += whine_if_not_found("mkisofs");
1166 if (system("which dvdrecord > /dev/null 2> /dev/null")) {
1167 retval += whine_if_not_found("cdrecord");
1168 }
1169 retval += whine_if_not_found("bzip2");
1170 retval += whine_if_not_found("gzip");
1171 retval += whine_if_not_found("awk");
1172 retval += whine_if_not_found("md5sum");
1173 retval += whine_if_not_found("strings");
1174 retval += whine_if_not_found("mindi");
1175 retval += whine_if_not_found("buffer");
1176
1177 // abort if Windows partition but no ms-sys and parted
1178 if (!run_program_and_log_output
1179 ("mount | grep -w vfat | grep -vE \"/dev/fd|nexdisk\"", 0)
1180 ||
1181 !run_program_and_log_output
1182 ("mount | grep -w dos | grep -vE \"/dev/fd|nexdisk\"", 0)) {
1183 log_to_screen("I think you have a Windows 9x partition.");
1184 retval += whine_if_not_found("parted");
1185#ifndef __IA64__
1186 /* IA64 always has one vfat partition for EFI even without Windows */
1187 // retval +=
1188 if (!find_home_of_exe("ms-sys")) {
1189 log_to_screen("Please install ms-sys just in case.");
1190 }
1191#endif
1192 }
1193
1194 if (!find_home_of_exe("cmp")) {
1195 if (!find_home_of_exe("true")) {
1196 whine_if_not_found("cmp");
1197 } else {
1198 log_to_screen
1199 ("Your system lacks the 'cmp' binary. I'll create a dummy cmp for you.");
1200 if (run_program_and_log_output
1201 ("cp -f `which true` /usr/bin/cmp", 0)) {
1202 fatal_error("Failed to create dummy 'cmp' file.");
1203 }
1204 }
1205 }
1206 run_program_and_log_output
1207 ("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
1208 strcpy(tmp,
1209 call_program_and_get_last_line_of_output
1210 ("mount | grep -E \"cdr(om|w)\""));
1211 if (strcmp("", tmp)) {
1212 if (strstr(tmp, "autofs")) {
1213 log_to_screen
1214 ("Your CD-ROM is mounted via autofs. I therefore cannot tell");
1215 log_to_screen
1216 ("if a CD actually is inserted. If a CD is inserted, please");
1217 log_to_screen("eject it. Thank you.");
1218 log_it
1219 ("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
1220 } else
1221 if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
1222 retval++;
1223 fatal_error
1224 ("Your CD-ROM drive is mounted. Please unmount it.");
1225 }
1226 }
1227#ifndef __FreeBSD__
1228 if (!does_file_exist("/etc/modules.conf")) {
1229 if (does_file_exist("/etc/conf.modules")) {
1230 log_it("Linking /etc/modules.conf to /etc/conf.modules");
1231 run_program_and_log_output
1232 ("ln -sf /etc/conf.modules /etc/modules.conf", 5);
1233 } else if (does_file_exist("/etc/modprobe.d")) {
1234 log_it
1235 ("Directory /etc/modprobe.d found. mindi will use its contents.");
1236 } else if (does_file_exist("/etc/modprobe.conf")) {
1237 log_it("Linking /etc/modules.conf to /etc/modprobe.conf");
1238 run_program_and_log_output
1239 ("ln -sf /etc/modprobe.conf /etc/modules.conf", 5);
1240 } else {
1241 retval++;
1242 log_to_screen
1243 ("Please find out what happened to /etc/modules.conf");
1244 }
1245 }
1246#endif
1247
1248 run_program_and_log_output("cat /etc/fstab", 5);
1249#ifdef __FreeBSD__
1250 run_program_and_log_output("vinum printconfig", 5);
1251#else
1252 run_program_and_log_output("cat /etc/raidtab", 5);
1253#endif
1254
1255 if (run_program_and_log_output("mindi -V", 1)) {
1256 log_to_screen("Could not ascertain mindi's version number.");
1257 log_to_screen
1258 ("You have not installed Mondo and/or Mindi properly.");
1259 log_to_screen("Please uninstall and reinstall them both.");
1260 fatal_error("Please reinstall Mondo and Mindi.");
1261 }
1262 sprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test", bkpinfo->tmpdir);
1263 if (run_program_and_log_output(tmp, 5)) {
1264 sprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test failed for some reason.", bkpinfo->tmpdir);
1265 log_to_screen(tmp);
1266 log_to_screen
1267 ("Please run that command by hand and examine /var/log/mindi.log");
1268 log_to_screen
1269 ("for more information. Perhaps your /etc/fstab file is insane.");
1270 log_to_screen
1271 ("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1272 retval++;
1273 }
1274
1275 if (!run_program_and_log_output("parted2fdisk -l | grep -i raid", 1)
1276 && !does_file_exist("/etc/raidtab")) {
1277 log_to_screen
1278 ("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1279 create_raidtab_from_mdstat("/etc/raidtab");
1280 }
1281
1282 if (retval) {
1283 mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1284 } else {
1285 mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1286 }
1287 return (retval);
1288}
1289
1290/**
1291 * Retrieve the line containing @p label from the config file.
1292 * @param config_file The file to read from, usually @c /tmp/mondo-restore.cfg.
1293 * @param label What to read from the file.
1294 * @param value Where to put it.
1295 * @return 0 for success, 1 for failure.
1296 */
1297int read_cfg_var(char *config_file, char *label, char *value)
1298{
1299 /*@ buffer ****************************************************** */
1300 char command[MAX_STR_LEN * 2];
1301 char tmp[MAX_STR_LEN];
1302
1303 /*@ end vars *************************************************** */
1304
1305 assert_string_is_neither_NULL_nor_zerolength(config_file);
1306 assert_string_is_neither_NULL_nor_zerolength(label);
1307 if (!does_file_exist(config_file)) {
1308 sprintf(tmp, "(read_cfg_var) Cannot find %s config file",
1309 config_file);
1310 log_to_screen(tmp);
1311 value[0] = '\0';
1312 return (1);
1313 } else if ((value != NULL) && (strstr(value, "/dev/") && strstr(value, "t0") && !strcmp(label, "media-dev"))) {
1314 log_msg(2, "FYI, I can't read new value for %s - already got %s", label, value);
1315 return (0);
1316 } else {
1317 sprintf(command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5",
1318 label, config_file);
1319 strcpy(value, call_program_and_get_last_line_of_output(command));
1320 if (strlen(value) == 0) {
1321 return (1);
1322 } else {
1323 return (0);
1324 }
1325 }
1326}
1327
1328
1329
1330/**
1331 * Remount @c supermount if it was unmounted earlier.
1332 */
1333void remount_supermounts_if_necessary()
1334{
1335 if (g_remount_cdrom_at_end) {
1336 run_program_and_log_output("mount " MNT_CDROM, FALSE);
1337 }
1338 if (g_remount_floppy_at_end) {
1339 run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1340 }
1341}
1342
1343/**
1344 * Unmount @c supermount if it's mounted.
1345 */
1346void unmount_supermounts_if_necessary()
1347{
1348 if (run_program_and_log_output
1349 ("mount | grep cdrom | grep super", FALSE) == 0) {
1350 g_remount_cdrom_at_end = TRUE;
1351 run_program_and_log_output("umount " MNT_CDROM, FALSE);
1352 }
1353 if (run_program_and_log_output
1354 ("mount | grep floppy | grep super", FALSE) == 0) {
1355 g_remount_floppy_at_end = TRUE;
1356 run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1357 }
1358}
1359
1360/**
1361 * Whether we had to stop autofs (if so, restart it at end).
1362 */
1363bool g_autofs_stopped = FALSE;
1364
1365/**
1366 * Path to the autofs initscript ("" if none exists).
1367 */
1368char g_autofs_exe[MAX_STR_LEN];
1369
1370/**
1371 * Autofs initscript in Xandros Linux distribution.
1372 */
1373#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1374
1375/**
1376 * Autofs initscript in most Linux distributions.
1377 */
1378#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1379
1380/**
1381 * If autofs is mounted, stop it (restart at end).
1382 */
1383void stop_autofs_if_necessary()
1384{
1385 char tmp[MAX_STR_LEN];
1386
1387 g_autofs_exe[0] = '\0';
1388 if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1389 strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1390 } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1391 strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1392 }
1393
1394 if (!g_autofs_exe[0]) {
1395 log_msg(3, "No autofs detected.");
1396 } else {
1397 log_msg(3, "%s --- autofs detected", g_autofs_exe);
1398// FIXME -- only disable it if it's running --- sprintf(tmp, "%s status", autofs_exe);
1399 sprintf(tmp, "%s stop", g_autofs_exe);
1400 if (run_program_and_log_output(tmp, 2)) {
1401 log_it("Failed to stop autofs - I assume it wasn't running");
1402 } else {
1403 g_autofs_stopped = TRUE;
1404 log_it("Stopped autofs OK");
1405 }
1406 }
1407}
1408
1409/**
1410 * If autofs was stopped earlier, restart it.
1411 */
1412void restart_autofs_if_necessary()
1413{
1414 char tmp[MAX_STR_LEN];
1415
1416 if (!g_autofs_stopped || !g_autofs_exe[0]) {
1417 log_msg(3, "No autofs detected.");
1418 return;
1419 }
1420 sprintf(tmp, "%s start", g_autofs_exe);
1421 if (run_program_and_log_output(tmp, 2)) {
1422 log_it("Failed to start autofs");
1423 } else {
1424 g_autofs_stopped = FALSE;
1425 log_it("Started autofs OK");
1426 }
1427}
1428
1429
1430/**
1431 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1432 */
1433void mount_boot_if_necessary()
1434{
1435 char tmp[MAX_STR_LEN];
1436 char command[MAX_STR_LEN];
1437
1438 log_msg(1, "Started sub");
1439 log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1440 g_boot_mountpt[0] = '\0';
1441 log_msg(4, "Done. Great. Seeting command to something");
1442 strcpy(command,
1443 "grep -v \":\" /etc/fstab | grep -vE '^#.*$' | grep -E \"[ ]/boot[ ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1444 log_msg(4, "Cool. Command = '%s'", command);
1445 strcpy(tmp, call_program_and_get_last_line_of_output(command));
1446 log_msg(4, "tmp = '%s'", tmp);
1447 if (tmp[0]) {
1448 log_it("/boot is at %s according to /etc/fstab", tmp);
1449 if ((strstr(tmp, "LABEL=") || strstr(tmp,"UUID="))) {
1450 if (!run_program_and_log_output("mount /boot", 5)) {
1451 strcpy(g_boot_mountpt, "/boot");
1452 log_msg(1, "Mounted /boot");
1453 } else {
1454 log_it("...ignored cos it's a label or uuid :-)");
1455 }
1456 } else {
1457 sprintf(command, "mount | grep -E '^%s'", tmp);
1458 log_msg(3, "command = %s", command);
1459 if (run_program_and_log_output(command, 5)) {
1460 strcpy(g_boot_mountpt, tmp);
1461 sprintf(tmp,
1462 "%s (your /boot partition) is not mounted. I'll mount it before backing up",
1463 g_boot_mountpt);
1464 log_it(tmp);
1465 sprintf(tmp, "mount %s", g_boot_mountpt);
1466 if (run_program_and_log_output(tmp, 5)) {
1467 g_boot_mountpt[0] = '\0';
1468 log_msg(1, "Plan B");
1469 if (!run_program_and_log_output("mount /boot", 5)) {
1470 strcpy(g_boot_mountpt, "/boot");
1471 log_msg(1, "Plan B worked");
1472 } else {
1473 log_msg(1,
1474 "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1475 }
1476 }
1477 }
1478 }
1479 }
1480 log_msg(1, "Ended sub");
1481}
1482
1483
1484/**
1485 * If we mounted /boot earlier, unmount it.
1486 */
1487void unmount_boot_if_necessary()
1488{
1489 char tmp[MAX_STR_LEN];
1490
1491 log_msg(3, "starting");
1492 if (g_boot_mountpt[0]) {
1493 sprintf(tmp, "umount %s", g_boot_mountpt);
1494 if (run_program_and_log_output(tmp, 5)) {
1495 log_it("WARNING - unable to unmount /boot");
1496 }
1497 }
1498 log_msg(3, "leaving");
1499}
1500
1501
1502
1503/**
1504 * Write a line to a configuration file. Writes a line of the form,
1505 * @c label @c value.
1506 * @param config_file The file to write to. Usually @c mondo-restore.cfg.
1507 * @param label What to call this bit of data you're writing.
1508 * @param value The bit of data you're writing.
1509 * @return 0 for success, 1 for failure.
1510 */
1511int write_cfg_var(char *config_file, char *label, char *value)
1512{
1513 /*@ buffers ***************************************************** */
1514 char command[MAX_STR_LEN * 2];
1515 char tempfile[MAX_STR_LEN];
1516 char tmp[MAX_STR_LEN];
1517
1518
1519 /*@ end vars *************************************************** */
1520 assert_string_is_neither_NULL_nor_zerolength(config_file);
1521 assert_string_is_neither_NULL_nor_zerolength(label);
1522 assert(value != NULL);
1523 if (!does_file_exist(config_file)) {
1524 sprintf(tmp, "(write_cfg_file) Cannot find %s config file",
1525 config_file);
1526 log_to_screen(tmp);
1527 return (1);
1528 }
1529 sprintf(tempfile, "%s/mojo-jojo.blah", bkpinfo->tmpdir);
1530 if (does_file_exist(config_file)) {
1531 sprintf(command, "grep -vE '^%s .*$' %s > %s",
1532 label, config_file, tempfile);
1533 paranoid_system(command);
1534 }
1535 sprintf(command, "echo \"%s %s\" >> %s", label, value, tempfile);
1536 paranoid_system(command);
1537 sprintf(command, "mv -f %s %s", tempfile, config_file);
1538 paranoid_system(command);
1539 unlink(tempfile);
1540 return (0);
1541}
1542
1543
1544/**
1545 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1546 * information to the logfile.
1547 */
1548void standard_log_debug_msg(int debug_level, const char *szFile,
1549 const char *szFunction, int nLine,
1550 const char *fmt, ...)
1551{
1552 va_list args;
1553 int i;
1554 static int depth = 0;
1555 char *tmp;
1556 FILE *fout;
1557
1558 if (depth > 5) {
1559 depth--;
1560 return;
1561 }
1562 depth++;
1563
1564 malloc_string(tmp);
1565
1566 if (debug_level <= g_loglevel) {
1567 va_start(args, fmt);
1568 if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1569 return;
1570 } // fatal_error("Failed to openout to logfile - sheesh..."); }
1571
1572 // add tabs to distinguish log levels
1573 if (debug_level > 0) {
1574 for (i = 1; i < debug_level; i++)
1575 fprintf(fout, "\t");
1576 if (getpid() == g_main_pid)
1577 fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction,
1578 nLine);
1579 else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1580 fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction,
1581 nLine);
1582 else
1583 fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile,
1584 szFunction, nLine);
1585 }
1586 vfprintf(fout, fmt, args);
1587
1588 // do not slow down the progran if standard debug level
1589 // must be enabled: if no flush, the log won't be up-to-date if there
1590 // is a segfault
1591 //if (g_dwDebugLevel != 1)
1592
1593 va_end(args);
1594 fprintf(fout, "\n");
1595 paranoid_fclose(fout);
1596 }
1597 depth--;
1598 paranoid_free(tmp);
1599}
1600
1601/**
1602 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1603 */
1604void (*log_debug_msg) (int, const char *, const char *, int, const char *,
1605 ...) = standard_log_debug_msg;
1606
1607
1608/**
1609 * If @p y, malloc @p x, else free @p x.
1610 * @bug This function seems orphaned. Please remove.
1611 */
1612#define do_alloc_or_free_depending(x,y) { if(y) {x=malloc(MAX_STR_LEN);} else {paranoid_free(x);} }
1613
1614/**
1615 * Allocate or free important globals, depending on @p mal.
1616 * @param mal If TRUE, malloc; if FALSE, free.
1617 */
1618void do_libmondo_global_strings_thing(int mal)
1619{
1620 if (mal) {
1621 malloc_string(g_boot_mountpt);
1622 malloc_string(g_mondo_home);
1623 malloc_string(g_tmpfs_mountpt);
1624 malloc_string(g_erase_tmpdir_and_scratchdir);
1625 malloc_string(g_serial_string);
1626 malloc_string(g_magicdev_command);
1627 } else {
1628 paranoid_free(g_boot_mountpt);
1629 paranoid_free(g_mondo_home);
1630 paranoid_free(g_tmpfs_mountpt);
1631 paranoid_free(g_erase_tmpdir_and_scratchdir);
1632 paranoid_free(g_serial_string);
1633 paranoid_free(g_magicdev_command);
1634 }
1635
1636 /*
1637 char**list_of_arrays[] = {
1638 &g_boot_mountpt,
1639 &g_mondo_home,
1640 &g_tmpfs_mountpt,
1641 &g_erase_tmpdir_and_scratchdir,
1642 &g_serial_string,
1643 &g_magicdev_command,
1644 NULL};
1645
1646 char**ppcurr;
1647 int i;
1648
1649 for(i=0;list_of_arrays[i];i++)
1650 {
1651 log_msg(5, "Allocating %d", i);
1652 ppcurr = list_of_arrays[i];
1653 if (mal)
1654 { *ppcurr = malloc(MAX_STR_LEN); }
1655 else
1656 {
1657 if (*ppcurr)
1658 {
1659 free(*ppcurr);
1660 }
1661 }
1662 }
1663 log_msg(5, "Returning");
1664 */
1665}
1666
1667/**
1668 * Allocate important globals.
1669 * @see do_libmondo_global_strings_thing
1670 */
1671void malloc_libmondo_global_strings(void)
1672{
1673 do_libmondo_global_strings_thing(1);
1674}
1675
1676/**
1677 * Free important globals.
1678 * @see do_libmondo_global_strings_thing
1679 */
1680void free_libmondo_global_strings(void)
1681{
1682 do_libmondo_global_strings_thing(0);
1683}
1684
1685
1686
1687/**
1688 * Stop @c magicdev if it's running.
1689 * The command used to start it is saved in @p g_magicdev_command.
1690 */
1691void stop_magicdev_if_necessary()
1692{
1693 strcpy(g_magicdev_command,
1694 call_program_and_get_last_line_of_output
1695 ("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99"));
1696 if (g_magicdev_command[0]) {
1697 log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1698 paranoid_system("killall magicdev");
1699 }
1700}
1701
1702
1703/**
1704 * Restart magicdev if it was stopped.
1705 */
1706void restart_magicdev_if_necessary()
1707{
1708 char *tmp;
1709
1710 malloc_string(tmp);
1711 if (g_magicdev_command && g_magicdev_command[0]) {
1712 sprintf(tmp, "%s &", g_magicdev_command);
1713 paranoid_system(tmp);
1714 }
1715 paranoid_free(tmp);
1716}
1717
1718/* @} - end of utilityGroup */
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